A unified improvement of the AES algorithm

Zhang, Yong; Chen, Aiguo; Chen, Bin

doi:10.1007/s11042-022-12742-1

Cited by 2 publications

(3 citation statements)

References 29 publications

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“…The Barbara and Cameraman images (Figure 1b and Figure 1d, respectively) are used to test the proposed encryption algorithm because, when using 256-gray-level images, there is a risk of poor-quality encryption if a secret-key cryptosystem is used. In fact, this is why AES is not used as a standard in image encryption, and the AES-CBC [47] cryptosystem is instead employed. Furthermore, in those images, parts are entirely white, and in the other image, parts are completely black.…”

Section: Images Used To Evaluate Iclebfmentioning

confidence: 99%

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Generation of Boxes and Permutations Using a Bijective Function and the Lorenz Equations: An Application to Color Image Encryption

et al. 2023

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Some images that contain sensitive information and travel through the network require security. Therefore, a symmetric cryptosystem that encrypts images and resists known attacks is developed. Subsequently, in this work, an encryption algorithm known as Image Cipher utilizing Lorenz equation and a Bijective Function—ICLEBF are proposed. In the proposal, the Lorenz equations and the Bijective function are used to generate boxes, the permutation, and schedule keys, considering that all these elements are different in each encryption process. The encryption procedure consists of 14 rounds, where a different box is applied in each round. In this type of algorithm, the impact of quantum computers will be less forceful and can be useful for that epoch. On the other hand, the quality of the encrypted images and the loss of sharpness in decoded images with damage are measured. In addition, an attack from five types of noise (one of which is a developed proposal) is carried out by applying it to encrypted images. Finally, the results of the proposed ICLEBF are compared with other recent image encryption algorithms, including the Advanced Encryption Standard. As a result, this proposal resists known attacks and others that the current standard does not support.

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Section: Images Used To Evaluate Iclebfmentioning

confidence: 99%

“…The procedure of the multiplicative noise is similar to the additive one. In fact, the value of I c is obtained according to Equation (47). Then, to apply the multiplicative noise shown in Equation ( 47), the value of I c is replaced by I c .…”

Section: Additive and Multiplicative Noisesmentioning

confidence: 99%

Generation of Boxes and Permutations Using a Bijective Function and the Lorenz Equations: An Application to Color Image Encryption

et al. 2023

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“…The AES algorithm is known for its high security and ease of implementation, and it has become the most widely used encryption algorithm in many security applications [22,23]. In [24], a unified algorithm based on AES is proposed, which improves the shift rows…”

Section: Introductionmentioning

confidence: 99%

A double encryption protection algorithm for stem cell bank privacy data based on improved AES and chaotic encryption technology

Wang,

Wei,

Zhang

et al. 2023

PLoS ONE

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The unique infinite self-renewal ability and multidirectional differentiation potential of stem cells provide a strong support for the clinical treatment. In light of the growing demands for stem cell storage, how to ensure personal privacy security and comply with strict ethical supervision requirements is particularly important. In order to solve the problem of low security of traditional encryption algorithm, we proposed a double encryption protection (DEP) algorithm for stem cell bank privacy data based on improved AES and chaotic encryption technology. Firstly, we presented the hash value key decomposition algorithm, through the hash value dynamic coding, cyclic shift, conversion calculation to get the key of each subsystem in the built algorithm. Secondly, DEP algorithm for privacy data is realized with two level of encryption. The first level of encryption protection algorithm used AES as the main framework, adding dynamic coding and byte filling based on DNA coding, and carries out dynamic shift of rows and simplified mixing of columns. The second level of encryption protection algorithm conducted random encoding, operation, diffusion and decoding based on the results of our proposed sequence conversion algorithm. Finally, we raised two evaluation indexes, the number of characters change rate (NCCR) and the unified average change intensity of text (UACIT) to measure the sensitivity of encryption algorithms to changes in plain information. The experimental results of using DEP shown that the average values of histogram variance, information entropy, NCCR and UACIT are116.7883, 7.6688, 32.52% and 99.67%, respectively. DEP algorithm has a large key space, high key sensitivity, and enables dynamic encryption of private data in stem cell bank. The encryption scheme provided in this study ensures the security of the private information of stem cell bank in private cloud environment, and also provides a new method for the encryption of similar high confidentiality data.

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A unified improvement of the AES algorithm

Cited by 2 publications

References 29 publications

Generation of Boxes and Permutations Using a Bijective Function and the Lorenz Equations: An Application to Color Image Encryption

Generation of Boxes and Permutations Using a Bijective Function and the Lorenz Equations: An Application to Color Image Encryption

A double encryption protection algorithm for stem cell bank privacy data based on improved AES and chaotic encryption technology

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